One vertex per element, one color per generator, with an edge from x to x·s.
(2,5)(6,8)(9,10,13,15)(11,12,16,14)(17,18)(19,24)(20,22)(21,30)(23,25)(26,29)(27,32)(28,31)(3,7)(6,8)(9,11,13,16)(10,14,15,12)(17,19)(18,24)(20,29)(21,27)(22,26)(23,28)(25,31)(30,32)(1,2)(3,6)(4,5)(7,8)(9,10)(11,12)(13,15)(14,16)(18,25)(19,28)(20,27)(26,30) involution — undirected(9,12)(10,11)(13,14)(15,16)(17,20,23,27)(18,22,25,32)(19,29,28,21)(24,26,31,30)(1,3)(2,6)(4,7)(5,8)(9,11)(10,12)(13,16)(14,15)(17,21,23,29)(18,26,25,30)(19,27,28,20)(22,31,32,24)(1,2)(3,6)(4,5)(7,8)(9,12)(10,11)(13,14)(15,16)(17,22)(18,27)(19,30)(20,25)(21,31)(23,32)(24,29)(26,28) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.